Portable Hydrostatic Test Pumps for Hydraulic Pressure Testing

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Fast, safe and simple pressure testing equipment


EST Hydrostatic Test Pumps offer a fast, safe and simple method for hydrostatic testing. These pumps are ideally suited for use with all EST test plugs or on a stand-alone basis. Choose from two models of hydrostatic test equipment and a number of pressure ranges.

  • Fast - Portable, Easy Set Up and Operation
  • Safe - Output Pressure Regulated
  • Simple - Attach Air and Water Supply, Begin Testing

At Curtiss Wright, you’ll find a variety of different products, for pressure testing equipment chosen from our two models of hydrostatic test equipment and several pressure ranges. Browse our other industry lead products such as speciality tools, POP-A-PLUG ® Tube Plugging Systems, and isolation plugs.


These tools and systems are used in all industry segments. To find any further information on any product or service, read the related documents including product guides, instruction sheets, and animations and videos.



P Series Hand Pump

The P Series Hand Pump is suitable for all hydrostatic testing applications such as pressure testing fluid pipework systems. Self-contained, portable hand pump with 5-gallon reservoir for testing tubes, pipes, and pressure vessels when air is not available. 

  • Output Pressure: Up to 3000 PsiG (207 BarG)
  • Internal Liquid Capacity: 5 Gallons (19 Litres)
  • Includes: high pressure bleed valve, hose with swivel fitting

P Series Pump

A P Series Pump is suitable for all hydrostatic testing applications such as leak testing in water pipe systems. Portable pump for testing tubes, pipes, and pressure vessels in the field or shop. Self-contained, lockable aluminium toolbox.

  • Output Pressure: 2500 and 10000 PsiG (172 /689 BarG) models available
  • Includes: 4” (100 mm) pressure gauge, high pressure hose, and quick couplings for air and water inlet connections.

Blue Max 3

The Blue Max 3 is a portable air driven pump, suitable for all hydrostatic testing applications. The enclosed cabinet provides safe & quiet operation, protects components from damage and the cabinet is on wheels for easy operation.

  • Output Pressure: 1000, 3600, and 10000 PsiG (69, 248, 689 BarG) models available
  • Includes: 4” (100 mm) pressure gauge, mating quick connect couplings for air inlet, water inlet and high pressure outlet connections 



What is a piping hydrostatic pressure test?

A hydrostatic pressure test or hydraulic pressure test may be carried out on pressure vessels such as industrial pipelines, plumbing, and gas cylinders.

The vessels are tested for strength and to check for any leaks. Leaks are detected by filling the vessel or pipe with liquid and applying the specified test pressure, this will allow for leak detection. If the water is dyed with a colourant it is easier to detect.

Carrying out regular pressure tests will help maintain safety, durability and prevent further damage.

How do you perform a hydraulic pressure test?

A hydraulic pressure test involves filling the vessel or pipe system with a liquid, usually water, which may be dyed so it can aid in visual leak detection. The vessel is then pressurized to the specified test pressure to validate a pipework system’s integrity. The testing is simple and quick to complete and usually carried out after any installation or modification works like pipework cleaning, water balancing, or chlorination. Pressure tightness can be tested by shutting off the supply valve and observing whether there is a pressure loss.

Why is hydro test pressure 1.5 times?

A hydraulic test is done with 1.5 times the amount of pressure to ensure safety. Pressure testing over the design pressure ensures that the system will be structurally sound when run at the design pressure. If your design pressure is 1500 psi, and you run it at 1500 pso, you do not want it to be on the verge of failure. Testing at 1600 or 2000 ensures that there are no leaks or issues when it is put into service.